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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1. Why would two-phase locking not be an appropriate concurrency control scheme for indexes? Discuss a more appropriate locking scheme for tree-based indexes.
2. What is a timestamp? How do timestampbased protocols for concurrency control differ from locking based protocols?
3. Describe the basic timestamp ordering protocol for concurrency control. What is Thomas’s write rule and how does this affect the basic timestamp ordering protocol?
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